A54SX32-1PQG208I - 32K Gate SX FPGA, 208-PQFP | Microchip
MPN： A54SX32-1PQG208I ✓ 啟用中A54SX32-1PQG208I 概覽
An antifuse FPGA is a type of field-programmable gate array whose interconnects are permanently programmed at power-up programming time by antifuse elements, in contrast to SRAM-based FPGAs that require an external configuration device. Within the programmable logic hierarchy, the A54SX32 belongs to the broader class of programmable logic devices (PLDs), positioned above CPLDs in density and below radiation-tolerant families such as RTAX in the Microchip portfolio. The sea-of-modules architecture of the SX family delivers ASIC-like performance and integration levels, simplifying design time and reducing system cost and power consumption.
Key features include 0.35 um CMOS antifuse technology, support for both 3.3V and 5V I/O operating environments, a 2,880-module sea-of-modules fabric, and combinational cell delays in the sub-nanosecond class that enable 280 MHz system performance. Because configuration data is stored in antifuses rather than volatile memory, the device is live at power-up with no boot time and inherently resists bitstream readback, a security advantage over SRAM FPGAs.
The SX architecture organizes logic into C-cells (combinational) and R-cells (sequential/register) with dedicated fast carry chains and a hierarchical routing structure, allowing wide decoding functions and high-speed state machines. Typical applications include industrial control, embedded glue logic replacement, bus interfacing, telecommunications line cards, test equipment, and military/industrial systems requiring non-volatile, instant-on programmable logic.
Design considerations: the 208-pin QFP requires careful PCB land-pattern design with attention to power/ground pin pairs; antifuse devices are one-time programmable, so functional verification in the Libero/Designer flow is essential before programming. Estimated power should be calculated with the manufacturer power calculator using design toggle rates.
This page synthesizes distributor pricing tiers, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing comparative guidance for sourcing and second-source planning.
直接替換替代品，適用於 A54SX32-1PQG208I — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： A54SX32-1PQG208I （相同外形與佔位） — 差異在於 Package, Family, System Gates, Architecture, Supply Voltage.
A54SX32-1PQG208
✅ 直接替換聯絡詢價
查看資料表 →A54SX32-2PQG208
✅ 直接替換聯絡詢價
查看資料表 →A54SX32-PQG208I
✅ 直接替換聯絡詢價
查看資料表 →A54SX32-P1PQG208I
✅ 直接替換📋 參考替代品（不在目錄中）
A54SX32-PPQG208I
✅ 直接替換📋 參考替代品（不在目錄中）
A54SX32A-1PQG208I
✅ 直接替換聯絡詢價
查看資料表 →A54SX32-1PQG208I 最大額定值與電氣特性
| Family | SX (Actel/Microsemi SX) |
| System Gates | 48000 |
| Equivalent Gates | 32000 |
| Logic Cells / Modules | 1800 |
| User I/O | 174 |
| 最大時脈頻率 | 280 MHz |
| Process Technology | 0.35 um CMOS antifuse |
| 供應電壓 | 3.3 V / 5 V |
| Speed Grade | -1 |
| Programmability Type | Antifuse (one-time programmable) |
| Configuration | Non-volatile, live at power-up |
| 封裝 | 208-BFQFP (208-PQFP) |
| 安裝類型 | Surface Mount |
| Temperature Grade | Industrial (I suffix) |
A54SX32-1PQG208I 208-bfqfp (208-pqfp) 腳位配置指南
A54SX32-1PQG208I（208-bfqfp (208-pqfp) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： A54SX32-1PQG208I.
請參閱 資料表 以查看完整腳位配置。
典型應用
A54SX32-1PQG208I 適用於 6 應用s: Industrial Control and Automation, Telecommunications Line Cards, Test and Measurement Equipment, Military and Aerospace Ground Systems, Bus Interface and Glue Logic Consolidation, Secure Embedded Controllers.
Industrial Control and Automation
The A54SX32-1PQG208I fits industrial control and factory automation systems because its 32K-gate antifuse fabric integrates glue logic, bus arbitration, and I/O expansion in one 208-pin device, while its industrial temperature rating (I suffix) supports harsh shop-floor environments. The instant-on, non-volatile configuration eliminates configuration time at power-up - critical for machinery safety interlocks that must be active immediately. With 174 user I/O and 3.3V/5V I/O support, it bridges legacy 5V PLC signaling to modern 3.3V controllers. A typical implementation places the FPGA between a backplane bus and local microprocessor, using its fast carry chains for counter/timer functions at clock rates approaching the 280 MHz family maximum. The trade-off is one-time programmability: design changes require a new programmed device rather than a firmware reload.
推薦
Telecommunications Line Cards
Telecom line-card designs historically adopted Actel SX FPGAs for their sea-of-modules performance and deterministic timing. The A54SX32-1PQG208I provides 32K gates and 174 I/O, sufficient for framing logic, HDLC controllers, backplane interfacing, and crossbar glue functions. Its sub-nanosecond-class cell delays and 280 MHz family maximum toggle rate support high-speed synchronous interfaces, while the antifuse fabric guarantees that registered paths behave identically at every power cycle - an advantage over SRAM FPGAs whose timing can vary with configuration placement. Live-at-power-up operation is essential for line cards that must enumerate on a backplane within milliseconds of insertion. Designers should budget the 3.3V supply current using the Microchip power estimator with realistic toggle rates, and consider the faster A54SX32-2PQG208 drop-in variant when timing margin is tight.
推薦
Test and Measurement Equipment
Bench and automated test instruments benefit from the A54SX32-1PQG208I's combination of instant-on non-volatile configuration and 174 user I/O for probe matrix switching, trigger logic, and instrument bus interfacing. The antifuse fabric's deterministic timing simplifies design of precision trigger chains where fixed gate delays matter more than reprogrammability. Its 32K-gate capacity accommodates counters, edge detectors, protocol generators, and address decoders in a single 208-pin PQFP, replacing dozens of 74-series devices and shrinking board area. The 3.3V/5V tolerant I/O environment interfaces directly with legacy instrument logic levels. Because the device is one-time programmable, teams should validate the full design in simulation before committing hardware; prototype iterations can use the pin-compatible commercial-grade A54SX32-1PQG208 during bench development before industrial units are programmed for production instruments.
推薦
Military and Aerospace Ground Systems
Ground-based defense electronics have long used Actel antifuse FPGAs because configuration data cannot be read back and the devices are immune to configuration-memory upset - there is no SRAM bitstream to corrupt. The A54SX32-1PQG208I provides 32K gates, 1,800 cells, and 174 I/O for command decoding, telemetry formatting, and sensor interfacing in non-flight ground equipment such as test sets and control consoles. Its live-at-power-up behavior guarantees readiness without a boot sequence, and the industrial temperature I-suffix variant suits sheltered but unconditioned environments. For higher-reliability and space applications, designers should migrate to the Microchip RTAX radiation-tolerant family (RTAX2000S/RTAX250S) which offers architectural continuity. Note the 208-pin PQFP is not suited to high-vibration deployed platforms without mechanical reinforcement of the leads.
推薦
Bus Interface and Glue Logic Consolidation
A primary role of the A54SX32-1PQG208I is consolidating legacy glue logic - address decoders, bus transceivers, wait-state generators, interrupt controllers - into one programmable device. Its 174 user I/O supports wide 32-bit processor buses with address and data steering, and the fast carry/decode structures in the SX sea-of-modules fabric produce the narrow decoding pulses needed by fast asynchronous buses. Live-at-power-up antifuse configuration means the decode logic is active before the host CPU completes reset, avoiding the boot-gap problem of SRAM FPGAs. The 3.3V/5V I/O capability is decisive for sustaining 5V TTL bus signaling on legacy systems while the FPGA core runs at 3.3V. Estimated power for glue-logic toggle rates is typically well below the family worst case, but the Microchip power calculator should confirm margin in the 208-pin package.
推薦
Secure Embedded Controllers
Applications requiring design confidentiality exploit the antifuse FPGA's inherent security: unlike SRAM FPGAs that expose a readable bitstream in external flash, the A54SX32-1PQG208I's configuration exists only as physical antifuse connections that cannot be read back or cloned by dumping memory. This makes it attractive for secure embedded controllers, license-protection logic, and anti-tamper gateways in industrial equipment. The 32K-gate fabric implements state machines, cryptographic assistants of modest size, and authentication sequences with deterministic timing, while the 174 I/O handles board-level sensor and actuator interfaces. Instant-on operation means security enforcement is active from the first clock edge, with no window during which an SRAM FPGA is unconfigured. The trade-off: any security patch to the logic requires a newly programmed device, so change management discipline is essential.
推薦
推薦產品摘要
工程參考資料，適用於 A54SX32-1PQG208I — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | A54SX32-1PQG208 | A54SX32-2PQG208 | A54SX32-PQG208I | A54SX32-P1PQG208I | A54SX32A-1PQG208I |
|---|---|---|---|---|---|---|
| Package | 208-BFQFP (208-PQFP) | 208-BFQFP - same | 208-BFQFP - same | 208-BFQFP - same | 208-BFQFP - same | 208-PQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Speed Grade | -1 | -1 | -2 (faster) | standard | P1 (faster) | -1 (SX-A, 278 MHz) |
| System Gates | 48000 | 48000 | 48000 | 48000 | 32000 equivalent | 32000 equivalent |
| User I/O | 174 | 174 | 174 | 174 | 174 | 174 |
| Core Process / Supply | 0.35 um, 3.3 V | 0.35 um, 3.3 V | 0.35 um, 3.3 V | 0.35 um, 3.3 V | 0.35 um, 3.0-3.6 V | 0.25 um, 2.5 V |
| Temperature Grade | Industrial (I) | Commercial | Commercial | Industrial (I) | Industrial (I) | Industrial (I) |
主要差異化特點
- Faster timing margin available in same footprint (對比A54SX32-2PQG208)
- Industrial qualification for harsh environments (對比A54SX32-1PQG208)
- Higher performance process vs SX-A successor (對比A54SX32A-1PQG208I)
設計說明
Decouple the 3.3V supply across the 208-pin PQFP with one 0.1 uF ceramic per power/ground pin pair placed within 3 mm of the pin, plus at least 10 uF of bulk capacitance near the device. Estimated: for a 32K-gate design with moderate toggle rates, core current is typically well under the family worst case, but run the Microchip power calculator with your actual design utilization and toggle data before finalizing the regulator rating. The 5V-tolerant I/O banks should have their own decoupling network if 5V signaling is used.
Antifuse FPGAs are one-time programmable: once the fuse file is programmed, the device cannot be erased or updated. Complete full post-layout timing simulation in the Microchip Designer flow before sending devices for programming, and program a small pilot lot first. Additionally, remember that the A54SX32 is live at power-up - ensure board-level power sequencing does not assume an unconfigured FPGA during reset, since its I/O may drive immediately.
The 208-BFQFP land pattern follows the JEDEC PQFP 208 outline; follow the mechanical drawing in the Microchip 54SX datasheet for pad dimensions. Route high-speed clock and strobe nets with controlled impedance and keep them short to preserve timing margin at the 280 MHz-class toggle rates. Probe the corner power pins during bring-up, and provide thermal relief vias to inner ground planes; the PQFP dissipation is modest but the exposed lead frame benefits from a solid ground pour.
合規資訊
Compliance data not present in the provided verified web data; consult Microchip product page or distributor compliance certificates.
